One of the biggest differences between a personal trainer who works systematically and one who improvises is the initial fitness assessment. Without objective baseline data, it's impossible to know whether training is working, adjust loads intelligently, or catch a problem before it turns into an injury.

In this article, I'll walk you through a practical fitness test battery you can complete in two 60-minute sessions, with no lab equipment required.

What should a complete fitness assessment include?

A well-structured initial assessment covers five domains:

Body composition: the starting point for fat loss or muscle gain goals
Mobility and flexibility: spotting limitations that will affect exercise technique
Strength and power: a baseline level for programming loads
Cardiorespiratory endurance: aerobic capacity and threshold
Movement quality: functional patterns, asymmetries, injury risk

SECTION 1 — Body composition

Basic anthropometric measurements

Body weight (fasted, same clothing)
Height
BMI (weight/height²)
Circumferences: waist, hips, relaxed and flexed arm, thigh, calf

Skinfold measurements (if you have calipers)

The most commonly used protocols for estimating body fat %:

4-site protocol (simplified Jackson-Pollock): biceps, triceps, subscapular, suprailiac
7-site protocol for greater precision

Bioelectrical impedance

If you have a bioimpedance scale, it's a faster alternative. Make sure conditions are always the same (hydration, time of day, no prior exercise). Important: the relevant data point isn't the absolute body fat %, which varies a lot depending on the method, but the change over time using the same method.

SECTION 2 — Mobility and flexibility

Sit and reach test

Measures flexibility of the posterior chain (hamstrings and lower back). Protocol: seated with legs extended, maximum forward trunk flexion. Measure the distance reached by the fingers relative to the soles of the feet (positive values = beyond the feet). Reference values (adults):

Excellent: > +27 cm (M), > +30 cm (F)
Good: +17-27 cm (M), +21-30 cm (F)
Average: +6-16 cm (M), +11-20 cm (F)
Below average: < +6 cm (M), < +11 cm (F)

Shoulder mobility (scratch test)

The client tries to touch their back from above with one hand and from below with the other. Measure the distance between the hands.

Ankle dorsiflexion (wall ankle test)

With the foot 10 cm from the wall, the client tries to touch the wall with their knee without lifting the heel. If they can't, there's a dorsiflexion limitation that will affect deep squats and step-downs.

SECTION 3 — Strength and power

Relative maximal strength test (submax)

Instead of a direct 1RM test, use the repetitions-to-failure test with a known percentage:

Perform the exercise (squat, bench press) to failure with a load of 70-80% of estimated 1RM
Apply the formula: 1RM = weight / (1.0278 – 0.0278 × reps)
Safer than testing the actual 1RM, especially for beginners

Strength endurance test: push-ups

Maximum number of push-ups with correct technique (rigid body, elbow at 90°). Reference values (adults aged 30-39):

Level	Men	Women
Excellent	> 35	> 25
Good	25-35	17-25
Average	15-24	10-16
Low	< 15	< 10

Power test: CMJ (Countermovement Jump)

A vertical jump with a countermovement. Measures explosive power of the lower body.

With Movalytics you can measure jump height directly from your phone's camera.

Core test: plank

Maximum time held in a front plank position with a rigid body. Reference values: more than 90 seconds is considered a good baseline for core endurance. A side plank asymmetry of more than 20% between sides deserves attention.

SECTION 4 — Cardiorespiratory endurance

Course Navette (Beep Test)

Progressive 20-meter shuttle runs paced by an audio signal. Allows you to estimate VO2max.

Ideal for groups and widely used in school and sports assessments.

Cooper test (12 minutes)

Distance covered in 12 minutes at maximum sustained pace. VO2max estimation: VO2max (ml/kg/min) = (distance in meters – 504.9) / 44.73

1-mile walk test (for sedentary individuals)

For clients with low fitness levels or cardiovascular risk factors. Time to walk 1 mile at a sustained pace.

SECTION 5 — Movement quality

Overhead Squat Assessment

A deep squat with arms raised overhead. Reveals mobility limitations in the ankle, hip, thoracic spine, and shoulders.

Observe from the front (knee valgus, arch collapse) and from the side (trunk lean, arm position).

Single Leg Squat

A single rep of a single-leg squat. Assesses balance, hip stability, and knee alignment.

Gait and running assessment (for runners)

Visual analysis from the frontal and sagittal planes during 2-3 minutes of treadmill running.

How to organize the assessment into 2 sessions

Session 1 (60 min) — Body composition and mobility

Anthropometric measurements (10 min)
Mobility: sit and reach, shoulder, ankle, overhead squat (20 min)
Break and PAR-Q questionnaire/history (10 min)
Push-ups and plank (20 min)

Session 2 (60 min) — Strength, power, and endurance

Warm-up (10 min)
CMJ (10 min)
Submax strength test in squat or bench press (20 min)
Cardiorespiratory endurance test (20 min)

Tracking and reassessment

The initial assessment has no value without follow-up. Set these from the start:

Frequency: reassess every 8-12 weeks for regular clients
Same conditions: same day of the week, same time, same equipment
Systematic record-keeping: use Movalytics or another tool that lets you compare historical results and generate client reports

The assessment report is also a retention tool: clients who see their progress on paper are more motivated to continue.

Conclusion

A well-structured fitness test battery isn't just a technical tool. It's the foundation of a professional relationship with the client: it shows that your work is scientific, measurable, and results-oriented. And in an increasingly competitive market, that makes all the difference.

Physical fitness test battery for personal trainers: what to assess, when, and how